ReadLine Returns What on No Input?

Question

I'm trying to grab user input (numbers) and I want to be able to process them. I'm looking for a way to insert a default value into the storage variable if the user just hits 'Enter' (e.g. enters no input), but the code either pitches a fit or doesn't make it obvious what return value I'm testing for in such a case.
So I did the search, nothing obvious in the forums:
http://search.sun.com/search/onesearch/index.jsp?qt=readline&rfsubcat=siteforumid%3Ajava54&col=developer-forums
The JavaDoc page doesn't show anything about the return value I'm interested in:
http://java.sun.com/j2se/1.3/docs/api/java/io/BufferedReader.html
Many tutorials site this particular process I'm going through, but don't cover the case I need:
http://www.scit.wlv.ac.uk/~jphb/java/basicio.html
http://pages.cs.wisc.edu/~cs302/io/JavaIO.html
Code:
import java.io.*;
public class testing_IO {
    public static void main(String[] args) {
        BufferedReader read = new BufferedReader(new InputStreamReader(System.in));   
        System.out.println("Enter the Following information:");
        int info;
        try {
            info = Integer.parseInt( read.readLine() );
        catch (IOException ioe) {       
            System.out.println("Using default value [0] for Spell Damage");
            System.out.println("IO error trying to read 'Spell Damage'");
            System.exit(1);
        catch(NumberFormatException nfex)
            System.out.println("\"" + nfex.getMessage() + "\" is not numeric");
            System.exit(1);
}From a little experimentation I see that when I enter no input at my prompt there, I get a non-numeric result. Now I need to know how to field the exception, e.g. I want to be able to set info=0 if I detect the case where I get no input.
--Pontifex                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

Answer 1

prometheuzz wrote:
Pontifex wrote:
Scanner looks interesting, but seems a bit overkill for what I'm going for.The docs may look a nit daunting, but it can be used without much hassle.They don't look too bad. The concept is similar to things I'd do with regex in Perl; If a little bit more convoluted.
I was trying to play around with the tool, but I get a compile time error when attempting to import the package:
Testing_Scanner.java:1: cannot resolve symbol
symbol : class Scanner
location: package util
import java.util.Scanner;
1 error
BUILD FAILED (total time: 0 seconds)
I'm using NetBeans IDE on Java 1.6. I don't see anything in the docs that would indicate that I need to install anything special to use it. Some namespace issue I'm missing?
--Pontifex